Are you in southern Illinois? I have an unconfirmed report of very small greys from the Peoria area; seems early, but we DID have a couple of days in the 80's that may have kick-started things.
At any rate, I will be do ing some "walking around" this weekend!
I found blacks, grays and snake heads on 4/10/10. most of them were around ash trees. Do you think they will all come at one time. I live in Brookville, Indiana.